Roofing machine



H. A. CUMFER ROOFING MACHINE Feb. 26, 1924-.

Original Filed Aug. 9, 1919 4 Sheets-Sheet 1 Feb. 2% 1924.

L484L76 H. A. CUMFER ROOFING MACHINE Original Filed Aug. 9, 1919 4 Shee ts-Sheet 2 H. A. CUMFER ROOFING MACHINE Original Filed Aug. 9, 1919 4 Sheets-Sheet 4 p s of roofing material.

- bination of parts herein claims.

Patent Feb. 26,. 124.

PORATION OF MASSACHUSETTS.

.z: a, 1:. A. CUMFER, OF CHICAGO, IELLINOIS, ASSIGNORQ BY MESNE ASSIGNMENTS, OF

ON'E'HALE TO THE FLIN'I'KOTE COMPANY, .015 BOSTON, SACHUSETTS, A COR- r.oormc manner.

Application filed August 9, 1919, Serial No. 316,378. Renewed August 17, 1928.

To all whom itomay concern:

Be it known that I, HARRY A. CGMFER, a citizen of the United States, residing in the city of Chicago, county of Cook and State of Illinois, have invented certain new and useful Improvements in Roofing Machines, of which the following is a specification.

My invention relates to a machine for making roofing, said roofing consisting of a strip of suitable backing material coated with asphaltum or other bitumen, upon which is more or less imbedded granular facing of slate, soapstone, mica, sand or the like in a predetermined design and relates also to .an apparatus 'for makingthis class The object of my invention is to provide an improved machine for making roofing of the character described in which granular substance may be laid down in patterns, using substances of various colors or other physlcal, characteristics; 'Another object is to produce a more economical machine so constructed that excess material not used in 7 making the pattern on the 'roofingmaterial is returned to be used again.

To this end my invention consists in the novel construction, arrangement and comshown and described and more particularly pointed out inthe In the accompanying drawings:

Fig. 1 is a side elevation of machine, parts omitted for clearness and parts broken awa Fig. 2'is an end elevation, partly in cross section with parts broken away to show construction o drum Figs. 3 4 and 5 1 method oi joining squares.

Fig. -6 is a fragmentary plan view of driving mechanism. v

Fig. 7 is a fragmentary end view of one of the drums showing method of distributing-granular'substance.

Fig. 8 is a plan view of roofing material in difierent stages of production.

In Fig- 1 are the bed rolls 1 or other suitable means arranged for supporting and feedinglthe roofing material 2, as it comes throu the guide rolls 3 after receiving the ad esive substance 4 from the receptacle 5'. The roofing material moves in the div y i I being fixed to the aredetailed views of rection of the arrow and is propelled by any suitable means (not shown).

Two hollow metallic drums 6 and 7 arranged directly above the roofing material 2 so their peripheries are at all timesout of contact with the material as shown in Figs. 2 and 3. These drums. are supported by means of flanged trunnion rolls 8 on shafts 8, said rolls engagingthe flanges 9, fastened driving pinion 13,- and two spur gears 14 on shafts 14, which spur gears mesh with like girth gears 15 fixed near the rim of each drunr:i at its driving end as shown in Figs. 1 an 6.

The drums are identical in construction so the description of one will sufiice. Like parts on each are numbered thesame.

At both ends of 'each drum are angle rings 16, the proper height so as to confine the granular substance within the drums. In Figs. 1 and 6, secured tothe same shaft as the bevel gear 12 and driving pinion 13,

are two sprocket wheels 17 which drive smaller sprockets 18, by means of chains 19. The sprockets 18 are fixed to and drive the conveyor shaft 20. Q

To this same shaft 20 is secured a second sprocket 21 which drives a similar sprocket 22, fixed on shaft 22 directly below, by means of a chain 23. In this manner, the distributing roll 24 on shaft 22 is-operate sprocket 22.

In Fig. 2 is shown a more comprehensive view of the method of feeding the granular substance to the drums. A conveyor shaft .20 is rotated within a tube 26 by means of the sprocket 18, chain driven from a sprocket 17,, as shown in The tube 26 is connected 25 so with the rotating of the conveyor s a 20, the granular substance travels from the with the ho per 1 99 same shaft as the Figs. 1' and 6.

hopper 25 and isdistributed along the bot-' tom of thetube 26, where it falls throu h a series of slots or ports 27 onto the distri uting roll 24', which may be either smooth .or

corrugated, (Fig. 7), (running in the direcis shown in detail.

tion of the arrow) and chain driven from the conveyor shaft 20 by the two sprockets 21 and 22.

In Fig. 7, the travel of the granular substance after leaving the conveyor tube 26 As the substance falls through the slots 27 in the tube 26, it is fed in a uniform layer 28 by the distributing roll 24 onto the-adhesive coated roofing material 2. The drum as will be explained later, has a series of solid or blank spaces on its periphery conforming with the pattern selected and the granular substance that falls upon these areas remains in the drum and only that part of the granular filler that falls through the open areas of the drum reaches the roofing material. The revolving drum carries with it the excess substance which falls upon the blank spaces, until these blank spaces revolve past the axial center of the drum, where gravitation deposits the grit into the wide inner or scavenger hopper 29, contained within the drum. This hopper 29 is held in place by two flanges 30-which secure it to the conveyor tube 26. The substance caught by this hopper is returned to the distributing roll 24 for redistribution.

A gate 31 adjusted by means of two toothed racks 32, two pinions and an adjusting shaft 34 which may be turned by means of a wrench at its square end 35,, furnishes a means by which the thickness of the granular coating may be regulated. On the opposite side of the roll 24, the hopper is shaped into a channel 36 in which the granular substance stands and furnishes a means by which the substance is fed evenly upon the distributing roll 24, i

Any suitable standard 40 (Fig. 2) may be used to support themachine and its driving parts.

The drum as shown in Fig. 2 is built of a metal. frame work 37 and may be made to conform with any desired pattern by the arrangement and character of the solid and open spaces ,upon its surface. For example the form shown in Fig. 2, a series of squares or rectangular openings 38 are of substantially uniform size with their diagonals in lines. The several openings 38 which constitute the pattern are accompanied by solid blank spaces 39 in alternate positions with the openings 38.

In Fig. 3, is shown the frame construction at a junction of the solid blanks 39 and the apertures 38. The metal frames are first dovetailed, each frame 37 being slotted at 41 (Fig. 5) then joined and made rigidby means of two small triangular blocks 42, which are riveted or welded into the angle of the frames '37 and to blanks 39, shown in .Fi s. 3 and 4.

n Fig 8 is shown the roofing material in successwe stages of production. At 2 is magma shown the original material, at 43 it has received the adhesive substance, at 44 it has passed under the first drum 6 and has received the inital layer of granular substance comprising the firststage of the pattern of any desired color, as red represented by the vertical lines. Finally at. 45, the material has pased beneaththesecond drum 7 which contains grit of'a different color, as green shown by the diagonal lines, the pattern is so arranged on'this drum as to deposit the the combination with means for feeding a roofing sheet having an adhesive bituminous coated surface, of revolving drums provided with spaced openings of predetermined configuration, means for feeding 'rit throu h said. openings whereby mineral grit can e applied to spaced areas of said adhesive coating, of a mechanism for returning excess material to be redistributed.

2. In a machine of the character described, the combination with means for feeding an adhesive bituminous coated roofing sheet, of a means for supplying a granular substance to revolving drums, provided with spaced openings of predetermined configuratlon, whereby colored mineral grit can be applied to spaced areas of said adhesive coating and means whereby excess grit may be returned for redistribution.

\ 3. In a machine of the character described, the combination, with means for feeding a roofing sheet having an adhesive coated surface and impregnated with the adhesive coating, of a means of supplying granular substance to revolving drums provided with spaced openings of predetermined configuration and means whereby granular substances can be applied in a uniform layer to spaced areas of said adhesive coating and means whereby excess grit may be returned for redistribution.

4. In a machine of the character described, the combination with means for feeding a roofing sheet having an adhesive bituminous coated surface of revolving drums provided with spaced openings and solid portions so shaped as to form small receptacles for excessmaterial, of means for returning this excess material to be used again.

5. In a machine of the character described, the combination with means for feeding a felted fibrous roofing sheet having an adhesive bituminous coating, of a plurality of .drums provided with spaced open- .ings for appl ing colored mineral grit thereto, means or feeding grit through said openings whereby each succeeding drum, supplies an element of the pattern to the uncovered surface of the roofing material left by the preceding drums and means for returning excess material for redistribution.

6. In a machine of the character described, the combination with means for feeding felted roofing having an adhesive bituminous coating, of a means for supplying mineral granular substances to revolving drums provided with spaced openings and solid portions, said solid portions so shaped as to form small receptacles for excess material, of a scavenger hopper for (501- lecting such excess material, and a roll for distributing granular substance.

7. In a machine of the character described, the combination with a means for means for supplying granular mineral substance to revolving drums, provided with spaced openings and solid portions so shaped as to form small receptacles for excess material, of a scavenger hopper and distributing roll for laying granular substance and means for regulating thickness of layer.

8. In a machine of the character described, the combination with means for feeding a roofing sheet having an adhesive coated surface, of a means for supplying excess material, a scavenger hopper for collecting excess material, and a roll for distributing granular substance, means for rotating the drums uniformly relative to each other to impose a regular design.

9. In a machine of the character described, the combination with means for feeding a felted fibrous roofing sheet having an adhesive bituminous coating, of a conveyor tube and screw conveyor, of a series of ports for supplying grit-to distributing roll, of a revolving drum provided with spaced openings and solid portions, shaped to form receptacle for excess substance of a scavenger hopper for collecting excess substance and roll for distributing same.

10. In a machine of the character described, the combination with means for feeding felted fibrous roofing sheet having an adhesive bituminous impregnating coating, of rotating drums, having a stenciled pattern cut in their peripheries, means for supplying the drums internally with mineral grits, of various colors, means for evenly distributing the grits through the apertures in the drums onto the sheets, the

blanks or solid portions of the pattern adapted to collect the excess grit and return it for redistribution.

HARRY A. GUMFER. 

